in washington, where passengers arriving on flights into the united states face much tougher security measures. all travelers from 14 countries deemed a security risk can expect full body searches. this is one week after a failed attempt to blow up an american airliner. >> the extra security measures are targeted and highly visible. all passengers that fly from countries considered to pose a threat to the u.s. will be given full body pat downs, and ham luggage will be searched. four of those countries are on the list of sponsors of terrorism. three others are deemed to be of interest. they include cuba, nigeria, sudan, yemen, iran, syria, and pakistan. the white house has come under intense pressure to improve airport security in the wake of the failed bomb plot on christmas day. >> it is not that the system is broken, but there are ways to improve the system to make sure we can put together the various pieces of information in a way that allows us to stop every terrorist. >> the nigerian national boarded a plane bound for detroit. the explosives were allegedly sown into his underwear